Strong association rule

Support Degree/%

Confidence Coefficient/%

$\left(A_9,A_{11}\right)\Rightarrow A_{13}$

40

81.4

$\left(A_9,A_{11}\right)\Rightarrow A_{11}$

40

97.3

$A_{11}\Rightarrow A_9$

50

88.5

$A_{13}\Rightarrow A_9$

40

99.0

$A_{15}\Rightarrow A_9$

40

85.1

$A_{15}\Rightarrow A_{11}$

40

81.9